问题

. The boy was sitting at the desk, ______ hard when his mother got home.

A:to pretend to work
B:to pretend to be working
C:pretending to work
D:pretending to be working

正确答案是：

同类题型

Mary was caught in a traffic jam and by the time she arrived at the airport her father’s plane_______

_____ from the number of the cars, he knew there were not many people at the club. [ ]

_____ with so much trouble,I am afraid, they will fail to complete the task on time [ ]

________ do you call your mother’s sister in English— Aunt.

Tom is crazy about painting. I think he has a real _______ for painting.